Java.lang.Boolean.hashCode() Method

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Description

The java.lang.Boolean.hashCode() returns a hash code for this Boolean object.

Declaration

Following is the declaration for java.lang.Boolean.hashCode() method

public int hashCode()

Overrides

hashCode in class Object

Parameters

  • NA

Return Value

This method returns the integer 1231 if this object represents true and the integer 1237 if this object represents false.

Exception

  • NA

Example

The following example shows the usage of lang.Boolean.hashCode() method.

package com.tutorialspoint;

import java.lang.*;

public class BooleanDemo {

   public static void main(String[] args) {

      // create 2 Boolean objects b1, b2
      Boolean b1, b2;

      // assign values to b1, b2
      b1 = new Boolean(true);
      b2 = new Boolean(false);

      // create 2 int primitives
      int i1, i2;

      // assign the hash code of b1, b2 to i1, i2
      i1 = b1.hashCode();
      i2 = b2.hashCode();

      String str1 = "Hash code of " + b1 + " is "  +i1;
      String str2 = "Hash code of " + b2 + " is "  +i2;

      // print i1, i2 values
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

Let us compile and run the above program, this will produce the following result:

Hash code of true is 1231
Hash code of false is 1237



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